International code of botanical nomenclature : adopted by the Thirteenth International Botanical Congress, Sydney, August 1981 / 
prepared and edited by E.G. Voss...[et al.]. 
 -- Utrech :   Scheltema & Holkema,   1983 
 - 472 p. -- 
 (Regnum vegetabile  ; 111).
<br/><br/>ISBN 90-313-0572-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botánica - Congresos y Asambleas<br/>Plantas - Nomenclatores
<br/><br/><label>Universal Decimal Class. No.: </label>58(063)